The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2000
Filed:
Jul. 21, 1997
Applicant:
Inventors:
Ronald W Roseman, Walton Hills, OH (US);
Kevin E Rice, Stow, OH (US);
Assignee:
Lucas Aerospace Power Equipment Corp., Aorora, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N / ; H02P / ;
U.S. Cl.
CPC ...
290 47 ; 290 31 ; 290 32 ; 290 34 ; 290 35 ; 290 / ; 290 / ;
Abstract
A starter cutoff control apparatus and method for a starter/generator used on an engine includes a circuit for detecting starter/generator armature current during an engine start operation, comparing the armature current to an armature current setpoint to produce an error signal; using the error signal to produce a field weakening control signal; and a circuit for producing a starter cutoff signal as a function of the field weakening control signal.